I completely understand your situation. I am a bit taller and have made some decisions on how I am approaching weight loss differently than what I know of you, but wanted to say I feel you can find success IF you have a plan, desire and a support network that will back you up.
I am very much alone (even in a crowd) and am working on serious challenges on multiple fronts. I would suggest you identify one thing and work on that before moving on to the next item. This would make you set smaller attainable goals and allow you to build on some success!
All my best
Bill in KC!